1 /*
   2  * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #import "GeomUtilities.h"
  27 #import <JavaNativeFoundation/JavaNativeFoundation.h>
  28 
  29 static JNF_CLASS_CACHE(sjc_Point2D, "java/awt/geom/Point2D");
  30 static JNF_MEMBER_CACHE(jm_pt_getX, sjc_Point2D, "getX", "()D");
  31 static JNF_MEMBER_CACHE(jm_pt_getY, sjc_Point2D, "getY", "()D");
  32 
  33 static JNF_CLASS_CACHE(sjc_Dimension2D, "java/awt/geom/Dimension2D");
  34 static JNF_MEMBER_CACHE(jm_sz_getWidth, sjc_Dimension2D, "getWidth", "()D");
  35 static JNF_MEMBER_CACHE(jm_sz_getHeight, sjc_Dimension2D, "getHeight", "()D");
  36 
  37 static JNF_CLASS_CACHE(sjc_Rectangle2D, "java/awt/geom/Rectangle2D");
  38 static JNF_MEMBER_CACHE(jm_rect_getX, sjc_Rectangle2D, "getX", "()D");
  39 static JNF_MEMBER_CACHE(jm_rect_getY, sjc_Rectangle2D, "getY", "()D");
  40 static JNF_MEMBER_CACHE(jm_rect_getWidth, sjc_Rectangle2D, "getWidth", "()D");
  41 static JNF_MEMBER_CACHE(jm_rect_getHeight, sjc_Rectangle2D, "getHeight", "()D");
  42 
  43 
  44 static jobject NewJavaRect(JNIEnv *env, jdouble x, jdouble y, jdouble w, jdouble h) {
  45     static JNF_CLASS_CACHE(sjc_Rectangle2DDouble, "java/awt/geom/Rectangle2D$Double");
  46     static JNF_CTOR_CACHE(ctor_Rectangle2DDouble, sjc_Rectangle2DDouble, "(DDDD)V");
  47     return JNFNewObject(env, ctor_Rectangle2DDouble, x, y, w, h);
  48 }
  49 
  50 jobject CGToJavaRect(JNIEnv *env, CGRect rect) {
  51    return NewJavaRect(env,
  52                       rect.origin.x,
  53                       rect.origin.y,
  54                       rect.size.width,
  55                       rect.size.height);
  56 }
  57 
  58 jobject NSToJavaRect(JNIEnv *env, NSRect rect) {
  59     return NewJavaRect(env,
  60                        rect.origin.x,
  61                        rect.origin.y,
  62                        rect.size.width,
  63                        rect.size.height);
  64 }
  65 
  66 CGRect JavaToCGRect(JNIEnv *env, jobject rect) {
  67     return CGRectMake(JNFCallDoubleMethod(env, rect, jm_rect_getX),
  68                       JNFCallDoubleMethod(env, rect, jm_rect_getY),
  69                       JNFCallDoubleMethod(env, rect, jm_rect_getWidth),
  70                       JNFCallDoubleMethod(env, rect, jm_rect_getHeight));
  71 }
  72 
  73 NSRect JavaToNSRect(JNIEnv *env, jobject rect) {
  74     return NSMakeRect(JNFCallDoubleMethod(env, rect, jm_rect_getX),
  75                       JNFCallDoubleMethod(env, rect, jm_rect_getY),
  76                       JNFCallDoubleMethod(env, rect, jm_rect_getWidth),
  77                       JNFCallDoubleMethod(env, rect, jm_rect_getHeight));
  78 }
  79 
  80 jobject NSToJavaPoint(JNIEnv *env, NSPoint point) {
  81     static JNF_CLASS_CACHE(sjc_Point2DDouble, "java/awt/geom/Point2D$Double");
  82     static JNF_CTOR_CACHE(ctor_Point2DDouble, sjc_Point2DDouble, "(DD)V");
  83     return JNFNewObject(env, ctor_Point2DDouble, (jdouble)point.x, (jdouble)point.y);
  84 }
  85 
  86 NSPoint JavaToNSPoint(JNIEnv *env, jobject point) {
  87     return NSMakePoint(JNFCallDoubleMethod(env, point, jm_pt_getX),
  88                        JNFCallDoubleMethod(env, point, jm_pt_getY));
  89 }
  90 
  91 jobject NSToJavaSize(JNIEnv *env, NSSize size) {
  92     static JNF_CLASS_CACHE(sjc_Dimension2DDouble, "java/awt/Dimension"); // No Dimension2D$Double :-(
  93     static JNF_CTOR_CACHE(ctor_Dimension2DDouble, sjc_Dimension2DDouble, "(II)V");
  94     return JNFNewObject(env, ctor_Dimension2DDouble, (jint)size.width, (jint)size.height);
  95 }
  96 
  97 NSSize JavaToNSSize(JNIEnv *env, jobject dimension) {
  98     return NSMakeSize(JNFCallDoubleMethod(env, dimension, jm_sz_getWidth),
  99                       JNFCallDoubleMethod(env, dimension, jm_sz_getHeight));
 100 }
 101 
 102 static NSScreen *primaryScreen(JNIEnv *env) {
 103     NSScreen *primaryScreen = [[NSScreen screens] objectAtIndex:0];
 104     if (primaryScreen != nil) return primaryScreen;
 105     if (env != NULL) [JNFException raise:env as:kRuntimeException reason:"Failed to convert, no screen."];
 106     return nil;
 107 }
 108 
 109 NSPoint ConvertNSScreenPoint(JNIEnv *env, NSPoint point) {
 110     point.y = [primaryScreen(env) frame].size.height - point.y;
 111     return point;
 112 }
 113 
 114 NSRect ConvertNSScreenRect(JNIEnv *env, NSRect rect) {
 115     rect.origin.y = [primaryScreen(env) frame].size.height - rect.origin.y - rect.size.height;
 116     return rect;
 117 }